In this sermon, the sheikh relates a hadith of the Prophet (peace and blessings be upon him) about the qualities that indicate hypocrisy (nifaq) in someone's heart: telling lies, breaking promises, distorting the truth in an argument and breaking one's pledge. He highlights the seriousness of these faults because of God's command to be among the people of truth and sincerity (sidq), and discusses how they can affect us in everyday life.